Tsuguhiro Fukuda
15Patents
9h-index
43Co-inventors
68Inventor score
Filing activity: Mar 2, 1988 → Jun 6, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5182581A | Ink jet recording unit having an ink tank section containing porous material and a recording head section | Performing Operations; Transporting | 209 | Expired |
| US5534898A | Ink jet head, ink jet apparatus and wiping method therefor | Performing Operations; Transporting | 196 | Expired |
| US5175565A | Ink jet substrate including plural temperature sensors and heaters | Performing Operations; Transporting | 91 | Expired |
| US6234599A | Substrate having a built-in temperature detecting element, and ink jet apparatus having the same | Performing Operations; Transporting | 33 | Expired |
| US5148192A | Liquid jet recording head with nonlinear liquid passages and liquid jet recording apparatus having same | Performing Operations; Transporting | 31 | Expired |
| US5371528A | Liquid jet head with nonlinear liquid passages having a diverging portion | Performing Operations; Transporting | 25 | Expired |
| US5066964A | Recording head having cooling mechanism therefor | Performing Operations; Transporting | 25 | Expired |
| US6113223A | Ink jet recording head with ink chamber having slanted surfaces to aid bubble removal | Performing Operations; Transporting | 18 | Expired |
| US5467113A | Ink-jet recording head, board for said head and ink-jet recording apparatus | Performing Operations; Transporting | 12 | Expired |
| US5508725A | Ink jet head having trapezoidal ink passages, ink cartridge and recording apparatus with same | Performing Operations; Transporting | 9 | Expired |
| US4883379A | Correction sheet and correction method | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6412920B1 | Ink jet printing head, ink jet head cartridge and printing apparatus | Performing Operations; Transporting | 7 | Expired |
| US6505907B2 | Recording apparatus having abnormality determination based on temperature and average ejection duty cycle | Performing Operations; Transporting | 7 | Expired |
| US4894288A | Thermal transfer material | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6598952B2 | Liquid jet recording head having controller for controlling temperature distribution | Performing Operations; Transporting | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.